[TCP]: Use old definition of before

This reverts the new (unambiguous) definition of the TCP `before'
relation. As pointed out in an example by Herbert Xu, there is
existing code which implicitly requires the old definition in order
to work correctly.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index b7d8317..cd8fa0c 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -242,7 +242,7 @@ extern int tcp_memory_pressure;
 
 static inline int before(__u32 seq1, __u32 seq2)
 {
-        return (__s32)(seq2-seq1) > 0;
+        return (__s32)(seq1-seq2) < 0;
 }
 #define after(seq2, seq1)      before(seq1, seq2)